Comparison of the properties of graphene- and graphene oxide-based polyethylene nanocomposites prepared by an in situ polymerization method
| Autor: | Dong-Ho Lee, Xuequan Zhang, Keun-Byoung Yoon, Jae-Hyeong Park, Hexin Zhang, Young-Kwon Moon, Yanming Hu, Eun-Bin Ko |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Nanocomposite Materials science Graphene General Chemical Engineering Oxide 02 engineering and technology General Chemistry Polymer Polyethylene 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Chemical engineering law Polymer chemistry Thermal stability In situ polymerization 0210 nano-technology Dispersion (chemistry) |
| Zdroj: | RSC Advances. 6:73013-73019 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c6ra11858e |
| Popis: | Here, we report a facile coagglomeration method for the preparation of graphene (G)/MgCl2- and graphene oxide (GO)/MgCl2-supported Ti-based Ziegler–Natta catalysts. The effects of the G-filler type on the ethylene polymerization behaviors and polymer properties were investigated. The morphologies of the resultant PE/G and PE/GO nanocomposites exhibited a layer-like shape and the G and GO fillers were well dispersed within the entire PE matrix. In addition, the thermal stability and mechanical properties of the PE were significantly enhanced by the introduction of a very small amount of G or GO fillers (0.02 wt%), due to the satisfactory dispersion of the G or GO in the PE matrix. Compared with the PE/G nanocomposites, the PE with the addition of GO exhibited superior toughness, while the stiffness of the PE was significantly enhanced by the G. |
| Databáze: | OpenAIRE |
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